[brk-lnt]

I have a Timbertech deck that I'm pretty happy with (going on 3 years now).

The Azek material BI mentioned is probably the "best", but at significant cost.

Timbertech is sort of like "trex" wrapped in "azek". Many of the pure composite decking materials can have problems with swelling and deterioration over time. Timbertech is a composite core, with a PVC outer wrapping. It looks better (IMO) than the normal composites and is priced in between trex-type decks and Azek.

When I researched this a couple of years ago, it seemed that the environment where the deck was going to be installed played a bit part. Most of the materials had various trade-offs in terms of shade/moisture exposure, sun fading, resistance to chemicals and so forth.